/**
 * 
 */
package com.zhiyou.service;

import java.util.List;

import com.zhiyou.pojo.Video;

/**
 * @author Administrator
 *
 */
public interface VideoService {

	
	List<Video> selectVideoByCourseId(int courseId);
	Video selectAll(int videoId);
	void updatePlayNumById(Video video);

}
